[Zope] Redirecting from inside a TAL macro ...

[Tres Seaver]

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Andreas Jung wrote:
> On 19.05.09 15:27, Analog Kid wrote:
>> Hi All:
>>
>> I have a macro that is used in several other page templates. In some
>> circumstances, I need to redirect to another URL. Can I do this using
>> python:here.REQUEST.RESPONSE.redirect(<NEWURL>) so that the master
>> page that uses this macro is redirected to the NEWURL?
> 
> This is bad-style. Redirections belong into a browser view or a
> PythonScript but
> not into a page template and definitely not into a macro.

To answer the OPs question:  it *is* possible to do what you describe,
typically via a 'tal:define', e.g.::

  <div tal:define="response request/RESPONSE;
                   should_redirect python:....;
                   dummy python:should_redirect
                            and response.redirect('...');">

Most long-time Zope folks frown on putting such logic in the template /
macro, because maintaining those templates gets pretty messy.


Tres.
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Tres Seaver          +1 540-429-0999          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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